Publications by authors named "R Vivanco"
Article Synopsis
- Long-term exposure to air pollution, specifically nitrogen dioxide (NO), is linked to increased hospital admissions (25%) and deaths (18%) related to COVID-19.
- Short-term exposure to air pollution in the week leading up to a COVID-19 diagnosis also correlates with higher rates of hospital admissions during the pandemic.
- The study involved a large cohort from Catalonia, analyzing air quality data and COVID-19 outcomes to assess the impact of air pollution on respiratory health.
This study evaluated the effect of different firing protocols on the surface roughness and flexural strength of CAD/CAM lithium disilicate glass-ceramic (LD) after aging methods. Forty-two LD bars of 16 x 4 x 2 mm (IPS e-max CAD, Ivoclar) were randomly separated into two groups according to firing protocols: Single firing-Staining, glazing, and crystallization in a single step; Multiple firings-Crystallization+First staining+Firing+Second staining+Firing+Glazing+Firing. After protocols, initial surface roughness readings were taken (Surfcorder SE1700, Kosakalab).
View Article and Find Full Text PDFPurpose: This study aimed to assess and compare the color stability, flexural strength (FS), and surface roughness of occlusal splints fabricated from heat-cured acrylic resin, milled polymethyl methacrylate (PMMA)-based resin, and 3D-printed (PMMA) based-resin.
Materials And Methods: Samples of each type of resin were obtained, and baseline measurements of color and surface roughness were recorded. The specimens were divided into three groups (n = 10) and subjected to distinct aging protocols: thermomechanical cycling (TMC), simulated brushing (SB), and control (without aging).
Dysembryoplastic neuroepithelial tumor (DNET) is a rare glioneuronal tumor usually found in the temporal lobe of children and young adults. DNETs are commonly associated with drug-resistant partial seizures, with most cases diagnosed before age 20. Asymptomatic brain tumors are rare in the general healthy population, and the frequency of incidental DNETs in adults remains unknown.
View Article and Find Full Text PDFCANOMAD, characterized by chronic ataxic neuropathy, ophthalmoplegia, immunoglobulin M (IgM) paraprotein, cold agglutinins, and disialosyl antibodies, encompasses a clinical, radiological, and laboratory diagnosis. CANOMAD is a rare condition, with fewer than 100 cases reported in the literature. The understanding and diagnosis of the disease have improved in the last few years, but the treatment of CANOMAD is mainly unknown, and there is not a clear consensus about it.
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